Home / 76,622.07-105,678.54-49,773.23

Finding the Fourth Proportional to 76,622.07, 105,678.54 and 49,773.23

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Solution

The fourth proportional to 76,622.07, 105,678.54 and 49,773.23 is: 68,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,622.07 : 105,678.54 = 49,773.23 : x
  2. Step 2: Convert to fraction form
    76,622.07/105,678.54 = 49,773.23/x
  3. Step 3: Cross multiply
    76,622.07x = 105,678.54 × 49,773.23
  4. Step 4: Simplify right side
    76,622.07x = 5,259,961,749.09
  5. Step 5: Solve for x
    x = 5,259,961,749.09/76,622.07
  6. Step 6: Final answer
    x = 68,648.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.